?? ???,?????????6000????????
????:1??????vx:??????????
2????????
3???????
4?????
5?????
?1???????????????????24??? ?????????????????(NBC)?,??23??????????????????,???????????,??????6000??????????????????
???:????????????????????????????????????,?,???????????????????,“??????????????”
??????????????????????20?????????????,???,?????????,???,????,“?????????????4500????5000??,????,???????”
????????????????,??????????
????:????????????????,?????????????“??6000?,????????????????????”
???????????????,?,???“?????????????????????”,????????????????1???,???(???)????
????????????:??????????